A passive acoustical survey method of finless porpoises
文献类型：期刊论文
| 作者 | Akamatsu, Tomonari1; Wang, Ding2; Wang, Kexiong2; Wei, Zhuo2; Naito, Yasuhiko |
| 刊名 | FISHERIES SCIENCE
 |
| 出版日期 | 2002 |
| 卷号 | 68页码:294-297 |
| ISSN号 | 0919-9268 |
| 关键词 | echolocation dolphin porpoise sonar underwater acoustics data logger |
| 英文摘要 | The finless porpoises (Neophocaena phocaenoides) have narrow band and high frequency sonar signals, which are distinctive from background noises. Underwater sound monitoring with hydrophones placed along the sides of a research vessel, concurrent with visual observations was conducted in the Yangtze River from Wuhan to Poyang Lake in China. In a total of 774 km cruise, 588 finless porpoises were sighted by visual observation and 44,864 ultrasonic pulses were recorded by the acoustical observation system. The acoustic monitoring system could detect presence of the finless porpoises 88% of the time, 300 m away from the hydrophone. False alarm in the system occurred with a frequency of 0.9%. Such a high detection performance of the present system was due to a large sound pressure level of sonar signals and frequent sound production. Over 160 dB off-axis sound pressure level and sonar signal production at every 3 to 4 s were observed by an acoustic and a behavioral data logger. The high frequency acoustical observation is suggested as an effective method for field surveys of small cetaceans, which produce sonar signals. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Fisheries |
| 研究领域[WOS] | Fisheries |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000207780600067 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/28830]  |
| 专题 | 水生生物研究所_水生生物分子与细胞生物学研究中心_期刊论文 |
| 作者单位 | 1.Natl Res Inst Fisheries Engn, Kashima, Ibaraki 3140421, Japan 2.Chinese Acad Sci, Inst Hydrol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Akamatsu, Tomonari,Wang, Ding,Wang, Kexiong,et al. A passive acoustical survey method of finless porpoises[J]. FISHERIES SCIENCE,2002,68:294-297. |
| APA | Akamatsu, Tomonari,Wang, Ding,Wang, Kexiong,Wei, Zhuo,&Naito, Yasuhiko.(2002).A passive acoustical survey method of finless porpoises.FISHERIES SCIENCE,68,294-297. |
| MLA | Akamatsu, Tomonari,et al."A passive acoustical survey method of finless porpoises".FISHERIES SCIENCE 68(2002):294-297. |
入库方式： OAI收割
来源：水生生物研究所
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